3-Terminal 1.5A Negative Adjustable Regulator Features
Description
• • • • • • •
The LM337 is a 3-terminal negative adjustable regulator. It supplies in excess of 1.5A over an output voltage range of -1.2V to - 37V. This regulator requires only two external resistor to set the output voltage. Included on the chip are current limiting, thermal overload protection and safe area compensation.
Output current in excess of 1.5A Output voltage adjustable between -1.2V and - 37V Internal thermal overload protection Internal short circuit current limiting Output transistor safe area compensation Floating operation for high voltage applications Standard 3-pin TO-220 package
Adjustable Pin Current Adjustable Pin Current Change
Reference Voltage Temperature Stability Minimum Load Current to Maintain Regulation
Min
Typ.
Max.
TA = +25°C 3V ≤ I VI - VO I ≤ 40V
-
0.01
0.04
3V ≤ I VI - VO I ≤ 40V
-
0.02
0.07
TA = +25°C 10mA ≤ IO ≤ 0.5A
-
15
50
10mA ≤ IO ≤ 1.5A
-
15
150
-
50
100
µA
-
2
5
µA
TA =+ 25°C
-1.213
-1.250
-1.287
3V ≤ I VI - VO I ≤ 40V 10mA ≤ IO ≤ 1.5A
-1.200
-1.250
-1.300
V
0°C ≤ ΤJ ≤ +125°C
-
0.6
-
%
3V ≤I VI - VO I ≤ 40V
-
2.5
10
3V ≤I VI - VO I ≤ 10V
-
1.5
6
mA
TA =+25°C 10Hz ≤ f ≤10KHz
-
0.003
-
V/106
VO = -10V, f = 120Hz
-
60
-
CADJ = 10µF (Note2)
66
77
-
dB
-
0.3
1
%
-
4
-
°C/ W
-
IADJ ∆IADJ
VREF STT IL(MIN)
Output Noise
eN
Ripple Rejection Ratio
RR
Long Term Stability
ST
Thermal Resistance Junction to Case
Conditions
RθJC
TA =+ 25°C 10mA ≤ IO ≤ 1.5A 3V ≤I VI - VO I ≤ 40V
TJ = 125°C ,1000Hours -
Unit %/ V
mV
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2. CADJ, when used, is connected detween the adjustment pin and ground.
2
LM337
Typical Application IPROG R2 Ci 0. 1µF
+
+ Iadj
R1
Co 1µF
Vadj
-VI
VI
KA337 LM337
Vo
-Vo
Figure 1. Programmable Regulator
• Ci is required if regulator is located more then 4 inches from power supply filter. A 1.0µF solid tantalum or 10µF aluminum electrolytic is recommended. Co is necessary for stability. A 1.0µF solid tantalum or 10µF aluminum electrolytic is recommended. • VO= -1.25V (1+R2/R1)
3
LM337
Mechanical Dimensions Package
TO-220 4.50 ±0.20
2.80 ±0.10 (3.00)
+0.10
1.30 –0.05
18.95MAX.
(3.70)
ø3.60 ±0.10
15.90 ±0.20
1.30 ±0.10
(8.70)
(1.46)
9.20 ±0.20
(1.70)
9.90 ±0.20
(45° 1.52 ±0.10
0.80 ±0.10 2.54TYP [2.54 ±0.20]
2.54TYP [2.54 ±0.20]
10.00 ±0.20
4
10.08 ±0.30
(1.00)
13.08 ±0.20
)
1.27 ±0.10
+0.10
0.50 –0.05
2.40 ±0.20
LM337
Ordering Information Product Number
Package
Operating Temperature
LM337T
TO-220
0°C to + 125°C
5
LM337
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
compensation capacitor at the output making it easy to ap- ply Worst case guarantees on ... b65 C to a150 C. Lead Temperature (Soldering 10 sec ). 300 C.
Electrical Characteristics(Note 1). Limits. Parameter. Conditions. LM145. LM345. Units. Min. Typ. Max. Min. Typ. Max. Output Voltage. Tj e 25 C IOUT e 5 mA.
General Description. The LM196 is a 10 amp regulator adjustable from 1 25V to .... The transformers are available as standard items for 5V ap- plications at 5A ...
10 mA s IL s 3A P s PMAX. Line Regulation. 3V s lVIN b VOUTl s 35V. 0 01. 0 02. % V. IOUT e 50 mA (Note 4). 0 02. 0 05. Load Regulation. 10 mA s IOUT s 3A P ...
The resistor RL limits the reverse currents through ther regulator (which should be 100 mA max) when the bat- tery is accidentally reverse connected. If RL is in ...Missing:
RF/IF and ZigBee® Solutions www.ti.com/lprf. TI E2E Community Home Page e2e.ti.com. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, ...
to the sharp turn-on characteristics this device is an excel- lent replacement for many zener diode applications. ... 2002 National Semiconductor Corporation.
Page 1 ... The MC79XX/LM79XX series of three-terminal negative regulators are available in TO-220 package and with sev- eral fixed output voltages, making ...
The Supertex LR8 is a high voltage, low output current, adjustable linear regulator. It has a wide operating input voltage range of 13.2V to 450V. The output ...
Service Department. Service. ... Please refer to the Service Literature which contains all the relevant inspection, adjustment and .... Low-pressure accumulator.
1:35 000. N. Secteur de chasse no. 15A. Les routes de la réserve faisant office de frontière entre deux secteurs de chasse font partie intégrante de ces derniers.
4700 - NEMA L5-15R. 4702 - NEMA L5-15R. 4703 - NEMA L5-15R. 4792 - NEMA L5-15R / 5-15R. 4794 - NEMA L5-15R / 5-15R. 4795 - NEMA L5-15R / 5-15R. Hot/Fase/. Sous tension. White/Blanco/. Blanc. Brass screw/. Tornillo latón/. Vis en laiton. Silver screw
Synthesis of Organometallic Compounds: A Practical Guide .... Bill is married to Angela, a high school teacher, and they have two children, Laura ...... Westmore, L. Rosenberg, T. S. Hooper, G. D. Willett and K. J. Fisher, Organometallics, 2002, 21,
... means graphic, electronic or mechanical, including photocopying, recording, taping or information storage and retrieval systems without the written permission ...
Note that all ions may be observed in association with a molecule of matrix, e.g. ..... biological macromolecules and, to a somewhat lesser extent, in polymer ...
n ±15V tracking outputs n Output current to 100 mA n Output voltage balanced to within 2% n Line and load regulation of 0.06% n Internal thermal overload ...
Turn T handle adjusting screw clockwise to increase vacuum or pressure, or counter clockwise to decrease vacuum or pressure. When decreasing vacuum or ...